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Please Patiently Ponder Purported Poe Puzzle

grouchomarxist writes: "Salon has an article about a cryptograph attributed to a certain W. B. Tyler, possibly a pseudonym for Edgar Allen Poe. There is a $2500 prize for the person who solves the cryptograph." The Gold-Bug , which rates a mention in the Salon article, was by far the most spell-binding story in my old Horace Mann Reader, and it's the tale that first turned me on to The Divine Edgar. Could it be that the reason this cryptograph has remained unsolved for so long is that it is actually insoluble? Now that would be the ultimate posthumous practical joke. Even if you have no intention of trying to solve it, take a look -- the cryptograph itself is strangely hypnotic.

50 of 195 comments (clear)

  1. It looks just like... by BigTed · · Score: 3

    An exam I took last year - Stage Three Electrical Engineering :-)

  2. Just a thought... by DgtlGhost · · Score: 4
    Anyone else get the idea that MAYBE this thing is up-side-down, or backwards? If it is Poe's, then that would make the Salutation a signature instead. Just a thought. I'm not a cryptographer, but I've watched them on Tv...
    Hey, new open source project, FreePoe! Set this thing up on Distibuted and lets get cracking! Damn, it's late.

    -Earthman

    1. Re:Just a thought... by telematx · · Score: 3

      Or perhaps two messages in one, since some letters go one way and others another. Or maybe it is one message, split in the middle and looped back on itself.

      Someone should split it in two and run frequency counts on each section.

  3. Won't work by luckykaa · · Score: 2

    There's 105 letters in this code (upper + lower case upside down and right way up + spaces)

    But back to your point, for most simple substitution codes, you can also use the rule that t is the second most repeated letter, and most of the time "t?e" maps on to "the". Doesn't everyone know this?

    1. Re:Won't work by Anonymous Coward · · Score: 3

      There's 105 letters in this code (upper + lower case upside down and right way up + spaces)

      You missed something obvious. The puzzle contains 6 alphabets. It uses normal and inverted instances of Upper case, lower case, and small caps.
      There are 156 possible letters in those 6 script systems altogether (157 including the space char). I haven't counted the letters in the ciphertext, but if there are only 105 symbols in the original text, there would not be enough repeats to form any obvious line of attack. It would all be brute force decoding based on an understanding of the encoding method. Good luck.

  4. Are the two puzzles related? by Lionfire · · Score: 5

    Just a thought -- perhaps the first puzzle, which was apparently reasonably easy to solve, is a clue to this second puzzle?

    It could be used as a form of "key" to solve the second...


    Or maybe that's just my sick twisted mind enjoying the idea of having people struggle to understand something left behind for 150 years while the clues are sitting right there on the same page :)


    ...MoO!

  5. Start with the obvious by luckykaa · · Score: 3

    My syntax here is "!" -> Upside down

    !TIA is repeated at least twice
    !A!mL is repeated at least twice
    These are probably "The" and "And"

    !i!rz and !irz are both in there

    b, !b and K are the only symbols on their own.
    Multiple representations of "I" and "A"?

    1. Re:Start with the obvious by Listen+Up · · Score: 2

      Things like that seem just a little too obvious. That is a good way to solve those little cryptograms in the daily newspaper. But, it is a great idea to get some thought flowing. But $2500 is a lot of money to give away if this little beauty was that easy.

    2. Re:Start with the obvious by theGamer · · Score: 3
      !TIA
      O!r!t
      and !W!c
      are all repeated twice.

      as for subtile changes there's:
      !dhb and dhb
      !irz and !i!rz
      (all lowercase, hmmm....)

      I have been staring at this damn thing for an hour and it baffles me.

      A few thoughts: could some of the characters be earmarks for jumping around between? Perhaps caps or upside-down indicates that the value of the letter should be added or subtracted.

  6. A Hint: by Anonymous Coward · · Score: 2

    It is obviously a multiply interleaved boustrophedonic text. If you don't know what that means, you have no hope of solving it. I could probably solve the problem given a week or so of hard work, its fairly obvious just from looking at the typesetting as to how it should be solved. But alas, I don't have the time at the moment. The solution is fairly trivial.

  7. I solved it by Anonymous Coward · · Score: 5
    It says,
    I poured hot grits down my pants while Natalie Portman was petrified and naked with ninjas and pancakes.

    FIRST POST!

    Way ahead of his time, Mr. Poe was.
  8. Schema + Brute force algorithm by Red+Pointy+Tail · · Score: 4

    My guess is that it is a letter substitution plus translations, governed by the characteristics like Big/Small, Capital/Not, Reversed/Not.

    I bet 100+ years ago they didn't have networked supercomputers like we did now, so it should be a cinch. So someone with access the juice, please key in the schema and churn

    1. Define degrees of freedom schema
    -----------------------------------
    a) Capital or not (0,1)
    b) Big, Small (0,1)
    c) Reversed, or not (0,1)
    d) The letter (1..26)

    2. Key in the data in this schema
    ---------------------------------
    (1,1,0,D),(1,0,0,R),spc,...

    3. Run the damn thing
    ---------------------
    Using a standard dictionary substitution methods for the letters d), using various translations for a), b) and c).

    1. Re:Schema + Brute force algorithm by ers81239 · · Score: 2

      Another thing to consider is that Poe had to write all of the right-side-up letters first, leaving blanks for the upside-down letters. Then he had to take the paper out of the typewriter and write the upside-down letters. You can notice how he didn't quite align everything properly between the 3rd and 2nd to last letters on the second line (a small-caps u and a upside-down/backwards lower-case c).
      I would vote against the guy who said to separate the letters by their type (like a 3d puzzle) because Poe wouldn't have gone to all that trouble just to have the letters be easily separated.
      Wouldn't it be naughty if the orientation/case was meant to mean something like the following:

      LC: leave in current position
      UC: Move one space away.
      SmallCap: Move two spaces away.
      Orientation Normal: Move to the right.
      Orientation Reversed: Move to the left.

      After you do all that, then you are left with a regular cipher.

      --
      there are 2 kinds of people. those who divide people into 2 kinds, and those who don't.
    2. Re:Schema + Brute force algorithm by Zarf · · Score: 2

      This is for all the crypto-newbies out there like myself:

      If we are to believe that Poe was lazy about the writing of the cipher, then we might also believe that Poe was lazy about the encryption schema aswell. In such case we may find that an successful cryptanalysis must also involve an examination of the process used to actually WRITE the cipher on a piece of paper... How would Poe have had to write this cipher down? How would he have done the type-setting?

      This involves more careful thought and use of the more arcane tools of cryptanalysis. I was a big fan of Brute force until I used it to try and crack a 500 year old cipher (the Vigenere). The Kasiski test yeilded a key word of 6... the key space was 2 to the 26th... the execution time was 3 days... the result was garbage. (reason: I was using the Mutual Index of Coincidence of English to tell me if I cracked the cipher)

      Perhaps my code was just buggy.

      The point is: How do you Brute Force something you know nothing about... and How do you know if your answer is "Correct"?

      in example Here is a cipher:

      KWAKOGCMADSGJRCEANAFAESEAPVWPW

      what's the decryption? Not a lot to go on is it? Perhaps Poe's cipher isn't insoluable, we just don't have enough to go on.

      - // Zarf //

      --
      [signature]
  9. Some things just aren't solvable. by Anonymous Coward · · Score: 2

    For example, if I defined the letter A to mean "Please Patiently Ponder Purported Poe Puzzle", you'd have no way of telling what the encrypted code A means unless I told you. The cryptographic method might not be that strong, but there just isn't enough data to be decrypted. I wouldn't waste my time with this.

  10. Diophantus' Arithmetica by Yardley · · Score: 5

    I have assuredly found an admirable resolution to this, but the margin is too narrow to contain it.

    And perhaps, posterity will thank me for having shown it that the ancients did not know everything.

    --

    --
    He lives in a world where those who do not run the client software of the omnipresent meme are unacceptable.
  11. More Poe fun by Restil · · Score: 2

    Although this isn't completely on topic, you might want to check out http://members.aol.com/s6sj7gt/mikerav.htm

    This is a transformation of the poem "The Raven" converted so the number of letters in each word match the digits in PI. Talk about people with too much time on their hands. :)

    -Restil

    --
    Play with my webcams and lights here
  12. The puzzle and A solution? by doomy · · Score: 4

    Maybe we are looking at the puzzle in the wrong way. I've been doing a lot of 3d work lately and the first time I saw this puzzle, I felt that it had something to do with a depth.

    Look at how some letters extrude out and some go in and some lie in most unusual manner. Also see the cases. There are fonts uses of varying sizes. This gives a very strong feel for depth. The first two letters. Cap D and R with the R being half the size of D, pushing it in. Then the mix of cases and the big OGXEW right up front.

    If someone could lay this puzzle in a 3d representation, I'm pretty sure we a solution would open up.
    --

    --
    ...free your source and the rest would follow...
    1. Re:The puzzle and A solution? by CausticPuppy · · Score: 2

      That's always a possibility, but in order to encode a puzzle in such a manner, the author would have to have a pretty good understanding of 3D perception and transformation, right?
      The question is: would an accomplished LITERARY genius necessarily have good spacial comprehension? If so, then it would be a trait nobody had known about until now.
      If not, maybe the puzzle is an attempt at 3D encoding, but not a very good one, so it would be easy to crack. Or utterly impossible if he didn't do it right!

      --
      -CausticPuppy "Of all the people I know, you're certainly one of them." -Somebody I don't know
    2. Re:The puzzle and A solution? by JonesBoy · · Score: 2

      Would a LITERARY genius necessarily have good spacial comprehension???? Hell yes! Pull two or three pages out of a book and hold them up to a light. You now have letters in different orientations and depth. It would not be easy to crack because the words are intertwined in each other. There is no letter to letter correlation, which is what was hinted to in the last puzzle. This may be a step in the right direction.

      --
      Speeding never killed anyone. Stopping did.
    3. Re:The puzzle and A solution? by CausticPuppy · · Score: 2

      Hold 3 pages up to a light, you now have letters in different orientations... but not depth, unless you're using really thick paper. The three sheets will just appear superimposed but it would be very difficult to tell which one was in back, in the middle, or in front.
      I didn't say that this WASN'T a possible explanation, just not likely, since I don't think Poe was reknowned for his ability to think spatially (assuming he was the author?). Maybe he could, but he just wasn't known for that specifically.
      It seems to me that there would be a more "algorithmic" solution...

      --
      -CausticPuppy "Of all the people I know, you're certainly one of them." -Somebody I don't know
  13. Insideoutsiders by absurd · · Score: 2

    And everyone is automatically assuming it is written in english. Oh my, oh my.

    Well that is what you get being all alone out there far away all by yourself and so on...

  14. Here is the REAL 19th Century Code Challenge... by cybrpnk · · Score: 4

    Poe IS cool but the REAL 19th century code mystery is called the Beale cypher. This guy sent the letter below and three code sheets to a friend. Beale's codes were based on documents available in the early 1800s - one was the Declaration of Independence. One code sheet talked about a vault of gold in Bedford County (Virginia, I think) when decoded, and the second listed who got what share of it (not reproduced here). The final code sheet with the gold's location, reproduced below, HAS NEVER BEEN BROKEN....

    Details at:

    http://treasurehunt.miningco.com/hobbies/treasur ehunt/bllet.htm

    The Original Uncoded Letter From Beale

    St. Louis, Mo., May 9th, 1822.

    Robt. Morris, Esq.:

    My Esteemed Friend: - Ever since leaving my comfortable quarters at your house I have been journeying to this place, and only succeeded in reaching it yesterday. I have had altogether a pleasant time, the weather being fine and the atmosphere bracing. I shall remain here a week or ten days longer, then "ho" for the plains, to hunt the buffalo and encounter the savage grizzlies. How long I may be absent I cannot now determine, certainly no less than two years, perhaps longer.

    With regard to the box left in your charge, I have a few words to say, and, if you will permit me, give you some instructions concerning it. It contains papers vitally affecting the fortunes of myself and many others engaged in business with me, and in the event of my death, its loss might be irreparable. You will, therefore, see the necessity of guarding it with vigilance and care to prevent so great a catastrophe. It also contains some letters addressed to yourself, and which will be necessary to enlighten you concerning the business in which we are engaged. Should none of us ever return you will please preserve carefully the box for the period of ten years from the date of this letter, and if I, or no one with authority from me during that time demands its restoration, you will open it, which can be done by removing the lock. You will find, in addition to the papers addressed to you, other papers which will be unintelligible without the aid of a key to assist you. Such a key I have left in the hands of a friend in this place, sealed, addressed to yourself, and endorsed not to be delivered until June, 1832. By means of this you will understand fully all you will be required to do.

    I know you will cheerfully comply with my request, thus adding to the many obligations under which you have already placed me. In the meantime, should death or sickness happen to you, to which all are liable, please select from among your friends some one worthy, and to him hand this letter, and to him delegate your authority. I have been thus particular in my instructions, in consequence of the somewhat perilous enterprise in which we are engaged, but trust we shall meet long ere the time expires, and so save you this trouble. Be the result what it may, however, the game is worth the candle, and we will play it to the end. With kindest wishes for your most excellent wife, compliments to the ladies, a good word to enquiring friends, if there be any, and assurances of my highest esteem for yourself, I remain as ever,

    Your sincere friend, T.J.B.

    Beale Code Page II - (This is the decrypt; the original is on the web page above)

    I have deposited in the county of Bedford, about four miles from Buford's, in an excavation or vault, six feet below the surface of the ground, the following articles, belonging jointly to the parties whose names are given in number "3," herewith:

    The first deposit consisted of one thousand and fourteen pounds of gold, and three thousand eight hundred and twelve pounds of silver, deposited November, 1819. The second was made December, 1821, and consisted of nineteen hundred and seven pounds of gold, and twelve hundred and eighty-eight pounds of silver; also jewels, obtained in St. Louis in exchange for silver to save transportation, and valued at $13,000.

    The above is securely packed in iron pots, with iron covers. The vault is roughly lined with stone, and the vessels rest on solid stone, and are covered with others. Paper number "1" describes the exact locality of the vault so that no difficulty will be had in finding it.

    THE LOCALITY OF THE VAULT - (This has never been decoded)

    71,194,38,1701,89,76,11,83,1629,48,94,63,132,16, 111,95,84,341.
    975,14,40,64,27,81,139,213,63,90,1120,8,15,3,126 ,2018,40,74.
    758,485,604,230,436,664,582,150,251,284,308,231, 124,211,486,225.
    401,370,11,101,305,139,189,17,33,88,208,193,145, 1,94,73,416.
    918,263,28,500,538,356,117,136,219,27,176,130,10 ,460,25,485,18.
    436,65,84,200,283,118,320,138,36,416,280,15,71,2 24,961,44,16,401.
    39,88,61,304,12,21,24,283,134,92,63,246,486,682, 7,219,184,360,780.
    18,64,463,474,131,160,79,73,440,95,18,64,581,34, 69,128,367,460,17.
    81,12,103,820,62,116,97,103,862,70,60,1317,471,5 40,208,121,890.
    346,36,150,59,568,614,13,120,63,219,812,2160,178 0,99,35,18,21,136.
    872,15,28,170,88,4,30,44,112,18,147,436,195,320, 37,122,113,6,140.
    8,120,305,42,58,461,44,106,301,13,408,680,93,86, 116,530,82,568,9.
    102,38,416,89,71,216,728,965,818,2,38,121,195,14 ,326,148,234,18.
    55,131,234,361,824,5,81,623,48,961,19,26,33,10,1 101,365,92,88,181.
    275,346,201,206,86,36,219,324,829,840,64,326,19, 48,122,85,216,284.
    919,861,326,985,233,64,68,232,431,960,50,29,81,2 16,321,603,14,612.
    81,360,36,51,62,194,78,60,200,314,676,112,4,28,1 8,61,136,247,819.
    921,1060,464,895,10,6,66,119,38,41,49,602,423,96 2,302,294,875,78.
    14,23,111,109,62,31,501,823,216,280,34,24,150,10 00,162,286,19,21.
    17,340,19,242,31,86,234,140,607,115,33,191,67,10 4,86,52,88,16,80.
    121,67,95,122,216,548,96,11,201,77,364,218,65,66 7,890,236,154,211.
    10,98,34,119,56,216,119,71,218,1164,1496,1817,51 ,39,210,36,3,19.
    540,232,22,141,617,84,290,80,46,207,411,150,29,3 8,46,172,85,194.
    39,261,543,897,624,18,212,416,127,931,19,4,63,96 ,12,101,418,16,140.
    230,460,538,19,27,88,612,1431,90,716,275,74,83,1 1,426,89,72,84.
    1300,1706,814,221,132,40,102,34,868,975,1101,84, 16,79,23,16,81,122.
    324,403,912,227,936,447,55,86,34,43,212,107,96,3 14,264,1065,323.
    428,601,203,124,95,216,814,2906,654,820,2,301,11 2,176,213,71,87,96.
    202,35,10,2,41,17,84,221,736,820,214,11,60,760.

    1. Re:Here is the REAL 19th Century Code Challenge... by timothy · · Score: 2

      Like this maybe-Poe cryptograph, though, the Beale has also never been solved, or at least not provably so. Some hunters have said that they located the destination (claiming this or that cave, well, hollow under West-Virginian bar, etc.).

      The most convincing report I've heard says that the Beale cipher was intentionally broken. That is, the first two sheets *were* soluble, with some work, but that's only a tease to make the 3rd one that much more frustrating.

      And since I haven't solved it, I'm inclined to bitterly agree.:)

      --
      jrnl: http://tinyurl.com/c2l8yr / foes: http://tinyurl.com/ckjno5
    2. Re:Here is the REAL 19th Century Code Challenge... by Mendax+Veritas · · Score: 2

      But if you solved the Beale cipher, would you announce the solution or just go get the gold and keep quiet about it?

  15. Mixup with another story by Ed+Avis · · Score: 2

    I read Slashdot with several stories in different windows. When I switched to this one, I got it confused with the previous story's comments.

    That must be the answer. The puzzle is an example sendmail.cf.

    --
    -- Ed Avis ed@membled.com
  16. Re:Troll, but funny! by Anonymous Coward · · Score: 3

    No, simply because it's often difficult to tell a good troll from someone who's serious..
    Yeah, well I was serious. Go look up "boustrophedon" at britannica.com if you think I just made it up. Poe was a clever bastard, and his text obviously contains clues to its own solution as a means to humiliate the solver so they'd see how OBVIOUS the clues were once it was solved. Remember, this was Poe's Parthian shot.
    The text runs in two directions, suggesting the regular characters are one text stream, and the upside-down characters are running back the other direction, interleaved with each other. Each type font (upper case, lower case, and small caps, plus inversions) could be a separate text stream, possibly there are 6 different interleaved streams, running in boustrophedonic fashion. I could work it out by brute force, but I don't have time. Good crypto cracking takes time, time I haven't got.
    So go ahead and label it a troll, it only shows your own ignorance. Maybe if you'd taken a few liberal arts and humanities courses in college, you'd know about this stuff.

  17. One Starting Place by paulywog · · Score: 2

    Since I'll probably not spend much time working on this myself (don't want to get fired from my real job that pays the bills), I'll throw out my first thoughts about the cryp.

    Perhaps the most obvious observation is that there are really four different sets of characters in the message:
    right-side-up UPPER CASE
    right-side-up lower case
    up-side-down UPPER CASE
    up-side-down lower case

    If the message isn't obsenely difficult to decode (as with the first message) then there are probably simply four different sets of rules to use with each of the four character types.

    A starting place might be to begin with shorter words or common repetitions of characters and begin there.

    Simple character replacement isn't all that difficult to decode, but character replacement when you've got 4 times as many encodings could be much more difficult. For instance, the upside "R" and "q" and rightside up "l" and "B" could all be the same letter for instance, making it nearly impossible to identify patterns or repeting characters. Someone want to make some estimates as to the total number of possible encodings?

    Is it (26!)^4 or something crazy like that?

    (26!)^4 = 2.65 x 10^106

    1. Re:One Starting Place by Basje · · Score: 2

      On a different note, what also strikes me is that only capitols (small and large) are used in the To Edgar part. Maybe this is a clue?


      I suspect that the author started coding using uppercase letters first, and when he ran out of uppercase he switched to lowercase or smallcaps.

      Maybe we can indeed use it.

      Furthermore I propose, should we solve this thing together here, to donate the $2500 to the Gutenberg project. It only seems fitting.

      ----------------------------------------------

      --
      the pun is mightier than the sword
  18. Surely Poe wasn't a script kiddie... by kasparov · · Score: 2

    But he certainly looks like he's trying to be 31337 here...

    --
    There's no place I can be, since I found Serenity.
  19. Eureka by EricWright · · Score: 2

    I have discovered a truly remarkable solution to this cypher which, unfortunately, is too large to fit in the available bandwidth to this server...

  20. New legal dispute coming up! by viktor · · Score: 2
    Hey! Look at that poe cipher, row 7 from the bottom, slightly right of the middle. It says 'eToY'!

    Darn. Just as one dispute was settled, the next begins. Now etoys.com will have to sue Poe postumly for using something that almost looks like their company name... :)

  21. Good fellow ... by Nicolas+MONNET · · Score: 2

    Since you haven't solved anything ... why don't YOU give some money to the OSS community?

    At least, he who will solve it will deserve it ...

  22. Against censorship by stupid moderation by Nicolas+MONNET · · Score: 2

    I repost the appropriate, learnèd and interesting post from our fellow A.C. I'll probably get moderated down, but anyway.

    A Hint:

    It is obviously a multiply interleaved boustrophe donic text. If you don't know what that means, you have no hope of solving it. I could probably solve the problem given a week or so of hard work, its fairly obvious just from looking at the typesetting as to how it should be solved. But alas, I don't have the time at the moment. The solution is fairly trivial.

  23. I *KNOW* what it is!!!! You owe me $1500!!! by Nicolas+MONNET · · Score: 2

    It's Textmode Quake running on Ada Lovelace's mechanical computer! I remember reading on freshmeat last century that aalib had been ported to it!

  24. Did anyone notice... by FirstEdition · · Score: 3

    Did anyone notice that the smaller, broken cypher was encoded using alphabetic substitution, but each word was reversed.

    "....Another clue was taken from Tyler's correspondence to Poe in which he discussed the difficulty of deciphering text that was written backwards ("eht", rather than "the"), and spaces and punctuation are omitted."

    We should not rule this out when/if attempting a brute force dictionary attack.

    Secondly, all symbols in use seem to be in one of 8 alphabets:

    * upper/lower case
    * small/normal size
    * right/upside down

    What about reading off the characters in each of the alphabets, (ignoring spaces & other alphabets), to create a stream of "normalised" characters. ie. start reading all upper/small/right, then upper/small/upsidedown, etc. From there, attack the concatenated stream as an alphabetic substitution cypher, allowing reversed words.

    Of course, we don't know which order to do the alphabets in.

    Hmmm. in the best Bletchley Park tradition, we could run all arrangements of 8 character streams in parallel.

    1. Re:Did anyone notice... by gotan · · Score: 2

      While small Caps/lowercase are still undistinguishable upside down characters are aligned a little lower than 'normal' characters (even small ones) so they can be distinguished with a ruler. I think though that Poe thought about this and used ambigous characters only for one meaning. For example i didn't see an upside down 'x' in the text, but i did find small caps 'T' and 't' (even next to one another). I did some counting and believe (as some others here) that it's a polyalphabetic ciphre, maybe with some added difficulties, since in the letters i counted (only large upside) none stood out being used particular often and most were used about 9 times throughout the text.

      --
      "By the way if anyone here is in advertising or marketing... kill yourself." -- Bill Hicks
  25. Eruditorum Challenge by Kazparr · · Score: 2

    Another crypto inspired author and slashdot favorite, Neal 'Cryptonomicon' Stephenson, has his own
    crypto challenge.
    It is certain to be harder than this one.

    I wasted half a day, and have since given up.

    Mind you the Poe cypher has been around 150 years, Stephenson's Eruditorum challenge has resisted solution for 1 (and counting.)

    Good Luck!

  26. Well of course it's soluble! by snicker · · Score: 3

    I bet given time we could come up with marginally reasonable algorithms to transform the cypher into, say, the receipt for Toklas Brownies , the Book of the Subgenius, my home phone number... after all, it could be compressed as well as encrypted. Without any idea of what the plaintext could even BE (what language? what alphabet?) how can we expect to know we have the right answer when we get one?

    Now there's an idea for an encryption algorithm, one that yields a false plaintext if an incorrect key is used...

    Hey, and does anyone care about Negroponte's challenge from the Being Digital hardcover? (Oooh triple encrypted! It's probably just "Yay! Digital!" over and over...)

    yeah, ok. back to work
    *snicker

  27. He was a programmer! by sqrlbait5 · · Score: 2

    I've seen CS professors write less clear code than that.


    The crypto thingy looks like it's in good ol' scary Perl anyways...I'd compile it but I'm no good at anything but assembly anymore...damn cprE classes.

    --
    LDAA #$80 BITA 0x40 BNE END
  28. Just ONE little question... by jabber · · Score: 2

    If we manage to 'solve' the puzzle, how will we know that our solution is correct?

    --

    -- What you do today will cost you a day of your life.
  29. Re:reversed words....no by B-Rad · · Score: 2

    eel
    llama
    aardvark

  30. Will work... by Pollux · · Score: 2

    Remembering all the kinds of encrypt forms I learned as a kid, one of the easiest was to throw in dummy characters (things that never meant anything but helped make things look more confusing). There's a few things to look at here:

    1) Possibly, some characters (maybe the ones in all caps, the ones upside-down, or whatever) are just thrown in there to confuse the decryptor.

    or 2) The different alignment of characters was meant to allude to different meanings. For example, if this letter could have been secretly written by Poe himself, maybe he based the text on allusions to his different works, or maybe on only one alone. Perhaps each letter alluded to a different word in a work of his.

    perhaps 3) The combination of the allignment and case of the letters was only meant to throw people off, and instead means absolutely nothing.

    Thinking about Poe's work, this particular code seems to fit. In almost all of his works, he has two sides, the light and dark. The fact that the code has right-side-up, upside-down, upper, and lower case seems to blend in with it. Come to think of it, perhaps it is two messages blended into one?

  31. Hold on... by grappler · · Score: 4

    First off, I know that this COULD be in a different language, meaningless random gibberish, or based on some horribly obscure document. However, I doubt it. Here's my thoughts:

    Here's what gets me - no letters are on top of each other. While this sure looks like it was fed into a typewriter and typed over several times with lowercase, smallcaps, and uppercase, upside down and not, it looks like gaps were left by someone who knew that when he got to that exact spot later, he would need a letter there.

    Also, I took your advise and looked up boustrophedon (great word by the way) - it means that every line would start at the same side of the page that the last ended on and go in the opposite direction "as the ox plows". If it is written this way, you would have to turn the paper upside down to type the other direction, so the stream would consist of right side up characters from alternating lines, and upside down from the other lines, and then go back the other way.

    I think it is more likely that he did something like this:

    o Type the entire right side up portion of the message, leaving gaps where he knew the upside down letters would go.

    o Turn the paper around

    o Type the rest of the message. Done.

    The fact that gaps had to be left implies that some planning went into this before the "final copy" was made. He probably had some rough drafts worked out. Also, he was into cryptograms that people worked out as puzzles, not codes that would be unbreakable. I think it's unlikely that there's some obscure text that he used as a key. If I were making a serious attempt at this, I would look for the following:

    o Words broken up differently from the spaces in the message.

    o Words written backward, or the entire message backward. Or vise versa.

    o Dummy characters. Especially at the end (beginning?)

    o Different substitution alphabets for different kinds/orientations of characters in the message. (This is doubtful IMHO)

    o boustrophedonic writing, like the guy said.

    I'm betting it's cheap tricks like this. You can be surprisingly criptic just doing that.

    --
    grappler

    --
    Vidi, Vici, Veni
    1. Re:Hold on... by grappler · · Score: 2

      Good point. In that case, I don't really see any reason why it should be bostrophedonic at all. It could just as easily be regular right-to-left text, in which case I'm betting it is.

      --
      grappler

      --
      Vidi, Vici, Veni
  32. On the wrong track? by gothiac · · Score: 3

    I have a couple of comments. I've been trying to get into Poe's head here, and I am finding that he would specifically be looking for ways to spoil the typical way of solving these cyphers. Like backward words in the previous example.

    Since he solved hundreds of these, he is really in tune with what is used to solve these (which are the trails that most of you seem to be following.) I would expect him to try to foil all or most of those techniques.

    I believe that it is solveable. It's a bit too perfect to not be (see what I say later.) And from what scant information I have read that Poe has said about these puzzles, he seems like he would be quite opposed to publishing one that didn't work. And man, did he spend some time typing it in just for a hoax.

    6 character sets, or a mutiple of 6, gets us dangerously close to 26 with a multiplier of 4 (6 * 4 ?). Maybe conincidence.

    Observations:
    You all know this already, but I see 6 classes of 26 characters: lg cap normal, sm cap normal, lg lower normal, lg cap inverted, sm cap inverted, lg lower inverted.

    The spaces _look_ like they really could represent spaces. Frequency is about right, and spacing of words seems right.

    Take a look at the first 3 lines of the cypher and you will find that there are almost no repeated characters (if you provide that he is using 6 "alphabets.") Repeats come in to play after you go on for a while. I think that there is an alphabet cycling routine going on here, so that the frequency would be perfectly flat! There is NO WAY that this is conincidence.

    Notice that, unlike normal words, I don't see any words with repeated letters. This is not simple substitution.

    Although I haven't really dug in yet, it seems to be that the different character sets happen more in some instances and less in others. The existence of OGXEW in the very beginning seems to me to be a clue of his algorhythm getting "started" and not into perfect hiding quite yet.

    For the 2-d or 3-d theories out there (my theory was that upside down letters were to be read from the bottom to the top, etc.), it's just too darn hard to do such perfect flat freqency if you are dealing with multiple threads of meaning throughout the message. Probably would have taken a computer.

    Poe is trying to heavily mask frequency analysis.

    Well, that's my $.02.. I'd be interested if anyone could build on this.

    1. Re:On the wrong track? by cryptomancer · · Score: 2
      This really is the right track, imho- problem analysis. And it's not so much looking at the cypher itself, but it's presentation. Published in an article which had been solving cyphers, and with stories which go on to explain the methods of solving (simple) cyphers, if those techniques worked on this, then the author (Poe or Tyler) was just giving another exercise to the readers. But it's not just another exercise, unless the exercise is to let the aspiring codebreaker know that the previous techniques don't work.

      Personally, nothing inspires me more than a challenge. (but don't send me any 'challenges', I'm a lazy-assed procrastinator, too.) And that's really what this cypher does- it challenges you to think about new things. If 'simple' cyphers can be cracked by symbol frequency, then mask the frequency somehow, by not having a 1-to-1 correspondence between symbols.
      -One means of doing this using the Lewis Carrol encryption algorithm. (look it up!:) I don't think that's at work here, because of the lack of repeated characters- in a Lewis Carrol code, you could see the same character repeated several times, each appearance corresponding to a different character because of the cypher key. (that'll make more sense if you looked it up.;)
      -Another means of 'flattening the frequencies' is at work here. Whether or not it's some alphabetic rotation as proposed won't be known until it's cracked. ;) But it seems that this is another part of problem analysis which could yield some good starts- figure out the problems resulting from trying to map 26 characters up to 156. I pose to the reader, how do you choose what set of 26 characters to use, and then what character? (so I pop open the calculator and start shuffling numbers... nothing really conclusive.)
      -Following the last idea of character mapping, then there's the matter of building words, and building the paragraph line by line. Maybe the words are encoded, and then their order is determined by another algorithm. (And here I'll give thanks to the Anonymous Coward who offered 'boustrophedon', and to dictionary.com for having the definition!) This compounds the problem of decryption, because finding out how a word is encoded is now foiled by it potentially being upside down and backwards. So in trying to solve the character-mapping problem, you have to think of every which way each word could be turned.

      That should be enough thought-provoking schlock for anybody either looking at the problem, or at encryption in general.

      "Holy exponential permutations!" -cryptomancer

      --
      Yes, we understand these tags always apply: fud, dupe, typo, slashdotted, topic name
  33. For the convenience of amateur cryptography script by Derek+Pomery · · Score: 2

    Since the original jpeg would give an OCR program fits, I gave it my best shot. Am currently encoding it as a two character sequence to handle each letter's orientation. (will be a sub-post).
    For now, here it is, letter orientations ignored.

    To Edgar A. Poe, Esq.
    ----------- original sequence a square ---------
    DR LIK OGXEW PFHFYY NBUH TIA VQSMGQ
    XDTBJS SNB ESALNKGYQJCP TVOL HLZGUCC
    LTTKRF PR NDDQL VWO HJFXIKFRI GXHYMEE TA
    QJETBXPEE YGWPUP BV STAVA NAZ TCGDYRC
    DHB YFKXDGF ZCNSMETL RK ORT OFNR ZQH MFG
    WCVIEGXHB AML NKU AFKSO IYBJDV BEFSGFLPL
    SPZL CEMNSW BGERTH ANJMY SEAYHTAA YAKTXDIX
    WG JCP JERK OFQARL NDOTY KCR ORT DJTBGP
    SEB DNBLQU LPH NJNJV ALGF DIKY WVO CEPIMXAY
    SYJZ EIF KMK XYKSSG HTITAW QBP QTLC DEYJ RVV
    UQRCPME NK VFHV LDAH XMKTIAX YE VJR ADFHW
    XQCMKUYWEKA GS B AGOIY NMEY RPC GIOQBG
    NBTEMMQ NK LCOPR SVIBPLSI NZQ DGTJH YDUGF
    RZNK CTE YL W TX JDMNARUFQX GDHYFBRI
    BZNL LBTPH FW EETOYDK TIA VIRQMFTV
    VVEHQLP DHB NNGJ WC MTEUJYRTF JDV HPHR
    KYSXTCEFA GS AML LQIGMXAR WC NFUIKY PM
    AGGB MJG ARNWADQ CMR IRZ XRHOEL KSYWTB
    CFG JC YK FJEO IDBLSTP IKRZ VNKADQ CTXH
    QDJW QCJPPE LUDFA K ADTV B GERPEC UTA VJYI
    KJ EMY IW GDF
    ------------------------------------------------ --

    A frequency counter.
    #!/usr/local/bin/perl
    @sequence=;
    foreach(@sequence)
    {
    chomp;
    foreach(split(//))
    {
    $freq{$_}++;
    }
    }
    foreach (sort(keys(%freq)))
    {
    $temp=$freq{$_};
    $byvalue{$temp} .= "$_,";
    }
    foreach (reverse(sort(numeric(keys(%byvalue)))))
    {
    chop($byvalue{$_});
    print "$byvalue{$_} has a frequency of $_ \n";
    }
    sub numeric
    {
    if ($a ;
    for ($i=0; $i 90;
    print chr($j);
    }
    }
    print "\n";
    }
    print "---- NEXT SHIFT ----\n";
    }

    --
    -- perl -e'print pack"H*","6e656d6f406d38792e6f7267"' /. ate my old sig. Bastards.
  34. I FIGURED IT OUT!!!@~!@!~@~!!~!!!!@! by Vorro · · Score: 2

    About a week ago, I asked my brother to make me a peanut-butter and jelly sandwich, since he was making himself one - i figured it wouldn't be too much trouble.

    He said no.

    10 minutes ago, he knocks on my door and hands me a PB&J on potato rye. As he is walking out the door, I say "thank you"... but with a mouth full of PB&J, it sounded something like "TbRfaamQz".

    Thats when i figued it out... I figured out the encryption algorighim!!!!

    After discovering the secret to PB&J encryption, reversing the cycle and finding the cypher for reverse PB&J encoding was quite easy.

    Now go make yourself a sandwich, read the encrypted page, and enjoy! I won't spoil the answer here, you'll enjoy it much more if you taste it for yourself :)

    Vorro
    ---------------------------
    A wise man speaks because he has something to say.
    A foolish man speaks because he has to say something.

    --
    ____________________________
    What did the Buddhist say to the hot dog vendor?

    "Make me one with everything."

  35. Early Obfuscated DeCSS Contest entry? by Cy+Guy · · Score: 2

    Actually, it was just an early entry in the Obfuscated DeCSS Contest.